<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
    <form action="http://localhost:8003/data/upload" method="post" enctype="multipart/form-data">
    <input type="file" name="file" />
    <input type="submit" value="上传文件" />
    </form>
</body>
</html>